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10,448,847 results
One hundred green-eyed logicians have been imprisoned on an island by a mad dictator. Their only hope for freedom lies in the ...
15,127,294 views
9 years ago
Four friends claim they have been wrongly imprisoned. They are not criminals but mere harmless logicians! The warden says, "If ...
718,346 views
8 months ago
An evil warden holds you prisoner, but offers you a chance to escape. There are 3 doors A, B, and C. Two of the doors lead to ...
625,237 views
7 years ago
An evil logician takes Alice and Bob captive. They have a chance to escape if they can deduce the total number of trees in the ...
2,369,458 views
8 years ago
Hey guys! We are all familiar with typical IQ tests that rate your intelligence level after you have answered some standardized ...
4,508,811 views
4 years ago
A classic logic puzzle / riddle. Are you up to the challenge? (With support and, finally, the solution.)
55,679 views
5 years ago
··· Special thanks to Patreon supporters: RayJ Johnson, Brian Busbee, Jerome Barakos M.D., Amadeo Bee, Julian Lee, ...
14,239,061 views
1 year ago
The 17th annual Brazilian Olympiad featured an incredibly tricky logic puzzle that went viral on social media. Thanks to Guilherme ...
2,708,276 views
2 years ago
... test metal puzzle IQ test ring puzzle IQ test puzzle Shorts Shorts feed viral problem solving puzzles puzzle logical puzzles math ...
428 views
2 days ago
Simple logic puzzle example illustrating the basic techniques to solve. Please see www.ifpthenq.net for more info and online ...
78,541 views
11 years ago
This problem is adapted from an Oxford University admissions question. They say if you can solve this in your head, you are a ...
6,816,904 views
-- Smuggling yourself aboard the rogue submarine was the easy part. Hacking into the nuclear missile launch override — a little ...
1,412,068 views
... Raymond Smullyan, and popularized by his colleague George Boolos, this riddle has been called the hardest logic puzzle ever.
12,766,326 views
How logical are you? This simple riddle is challenging for most people, and even mathematicians as a whole struggle to solve it.
566,763 views
10 months ago
Scientists have proven that riddles help you boost your thinking abilities and improve your attention span. Are you ready to solve ...
3,654,087 views
6 years ago
How to Boost Your Brain Quickly. Do you think you are smarter than other people and have exceptional logic? Test your brain and ...
17,477,222 views
This is one of the most popular puzzles, and there is an incredible way to solve it! Sources ...
568,073 views
There are 25 mechanical horses and a single racetrack. Each horse completes the track in a pre-programmed time, and the ...
7,527,403 views
Alice and Bob are secretly told consecutive numbers, but neither knows the other person's number. They cannot communicate or ...
372,560 views
Send me suggestions by email (address at end of many videos). I may not reply but I do consider all ideas! If you buy from the ...
412,488 views